thermometer/manager.c

   1 /*
   2  *
   3  *  BlueZ - Bluetooth protocol stack for Linux
   4  *
   5  *  Copyright (C) 2011 GSyC/LibreSoft, Universidad Rey Juan Carlos.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  *
  21  */
  22
  23 #include <gdbus.h>
  24 #include <errno.h>
  25 #include <bluetooth/uuid.h>
  26
  27 #include "adapter.h"
  28 #include "device.h"
  29 #include "att.h"
  30 #include "gattrib.h"
  31 #include "gatt.h"
  32 #include "thermometer.h"
  33 #include "manager.h"
  34
  35 static DBusConnection *connection = NULL;
  36
  37 static gint primary_uuid_cmp(gconstpointer a, gconstpointer b)
  38 {
  39         const struct gatt_primary *prim = a;
  40         const char *uuid = b;
  41
  42         return g_strcmp0(prim->uuid, uuid);
  43 }
  44
  45 static int thermometer_driver_probe(struct btd_device *device, GSList *uuids)
  46 {
  47         struct gatt_primary *tattr;
  48         GSList *primaries, *l;
  49
  50         primaries = btd_device_get_primaries(device);
  51
  52         l = g_slist_find_custom(primaries, HEALTH_THERMOMETER_UUID,
  53                                                         primary_uuid_cmp);
  54         if (l == NULL)
  55                 return -EINVAL;
  56
  57         tattr = l->data;
  58
  59         return thermometer_register(connection, device, tattr);
  60 }
  61
  62 static void thermometer_driver_remove(struct btd_device *device)
  63 {
  64         thermometer_unregister(device);
  65 }
  66
  67 static struct btd_device_driver thermometer_device_driver = {
  68         .name   = "thermometer-device-driver",
  69         .uuids  = BTD_UUIDS(HEALTH_THERMOMETER_UUID),
  70         .probe  = thermometer_driver_probe,
  71         .remove = thermometer_driver_remove
  72 };
  73
  74 int thermometer_manager_init(DBusConnection *conn)
  75 {
  76         int ret;
  77
  78         ret = btd_register_device_driver(&thermometer_device_driver);
  79         if (ret < 0)
  80                 return ret;
  81
  82         connection = dbus_connection_ref(conn);
  83         return 0;
  84 }
  85
  86 void thermometer_manager_exit(void)
  87 {
  88         btd_unregister_device_driver(&thermometer_device_driver);
  89
  90         dbus_connection_unref(connection);
  91         connection = NULL;
  92 }