cdma: implement EquipmentIdentity for CDMA devices

src/mm-generic-cdma.c

@@ -124,6 +124,44 @@ check_valid (MMGenericCdma *self)
     mm_modem_base_set_valid (MM_MODEM_BASE (self), new_valid);
 }
 
+static void
+get_esn_cb (MMModem *modem,
+            const char *result,
+            GError *error,
+            gpointer user_data)
+{
+    if (modem) {
+        mm_modem_base_set_equipment_identity (MM_MODEM_BASE (modem), error ? "" : result);
+        mm_serial_port_close (MM_SERIAL_PORT (MM_GENERIC_CDMA_GET_PRIVATE (modem)->primary));
+        check_valid (MM_GENERIC_CDMA (modem));
+    }
+}
+
+static void
+initial_esn_check (MMGenericCdma *self)
+{
+    GError *error = NULL;
+    MMGenericCdmaPrivate *priv;
+
+    g_return_if_fail (MM_IS_GENERIC_CDMA (self));
+    priv = MM_GENERIC_CDMA_GET_PRIVATE (self);
+
+    g_return_if_fail (priv->primary != NULL);
+
+    if (mm_serial_port_open (MM_SERIAL_PORT (priv->primary), &error)) {
+        /* Make sure echoing is off */
+        mm_at_serial_port_queue_command (priv->primary, "E0", 3, NULL, NULL);
+        mm_modem_cdma_get_esn (MM_MODEM_CDMA (self), get_esn_cb, NULL);
+    } else {
+        g_warning ("%s: failed to open serial port: (%d) %s",
+                   __func__,
+                   error ? error->code : -1,
+                   error && error->message ? error->message : "(unknown)");
+        g_clear_error (&error);
+        check_valid (self);
+    }
+}
+
 static gboolean
 owns_port (MMModem *modem, const char *subsys, const char *name)
 {
@@ -176,7 +214,10 @@ mm_generic_cdma_grab_port (MMGenericCdma *self,
                 priv->data = port;
                 g_object_notify (G_OBJECT (self), MM_MODEM_DATA_DEVICE);
             }
-            check_valid (self);
+
+            /* Get modem's ESN number */
+            initial_esn_check (self);
+
         } else if (ptype == MM_PORT_TYPE_SECONDARY)
             priv->secondary = MM_AT_SERIAL_PORT (port);
     } else if (MM_IS_QCDM_SERIAL_PORT (port)) {