api: add new AllowedModes and AccessTechnology API

This adds split properties and functions for the allowed modes and the
current access technology used by the device when connected to the
mobile network.

introspection/mm-modem-gsm-network.xml

@@ -98,7 +98,8 @@
       <tp:docstring>
         Returns the current network mode of the device (DEPRECATED; does not
         allow returning both the saved mode preference *and* the current access
-        technology of the device at the same time.  See GetAllowedModes instead).
+        technology of the device at the same time.  See the AllowedModes
+        property instead).
       </tp:docstring>
       <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
       <annotation name="org.freedesktop.DBus.GLib.CSymbol" value="impl_gsm_modem_get_network_mode"/>
@@ -125,6 +126,41 @@
       </arg>
     </method>
 
+    <method name="SetAllowedModes">
+      <tp:docstring>
+        Set the allowed access technologies to use when connecting to a mobile
+        network.
+      </tp:docstring>
+      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
+      <annotation name="org.freedesktop.DBus.GLib.CSymbol" value="impl_gsm_modem_set_allowed_modes"/>
+      <arg name="mode" type="u" direction="in" tp:type="MM_MODEM_GSM_MODE">
+        <tp:docstring>
+          The allowed access technologies.  Only one mode flag may be specified,
+          and it may not be UNKNOWN.  The device may not support all modes; see
+          the org.freedesktop.ModemManager.Gsm.Card.SupportedModes property for
+          allowed modes for each device.  All devices support the "ANY" flag.
+        </tp:docstring>
+      </arg>
+    </method>
+
+    <property name="AllowedModes" type="u" access="read" tp:type="MM_MODEM_GSM_MODE">
+      <tp:docstring>
+        The allowed access technologies (eg 2G/3G preference or specific access
+        technology) to use when connecting to a mobile network.  (Note for plugin
+        writers: this value may be ANY)
+      </tp:docstring>
+    </property>
+
+    <property name="AccessTechnology" type="u" access="read" tp:type="MM_MODEM_GSM_MODE">
+      <tp:docstring>
+        The current network access technology used by the device to communicate
+        with the base station.  (Note to plugin writers: if the device's access
+        technology cannot be determined, use UNKNOWN.  Using any of the
+        PREFER flags or the ANY in this field is invalid as they are not a
+        specific access technology.)
+      </tp:docstring>
+    </property>
+
     <signal name="SignalQuality">
       <tp:docstring>
 	The signal quality changed.