1 /*
2 *
3 * BlueZ - Bluetooth protocol stack for Linux
4 *
5 * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include <config.h>
26 #endif
27
28 #include <errno.h>
29 #include <dbus/dbus.h>
30
31 #include <bluetooth/bluetooth.h>
32
33 #include "plugin.h"
34 #include "adapter.h"
35 #include "log.h"
36
formfactor_reply(DBusPendingCall * call,void * user_data)37 static void formfactor_reply(DBusPendingCall *call, void *user_data)
38 {
39 struct btd_adapter *adapter = user_data;
40 const char *formfactor = NULL;
41 DBusMessage *reply;
42 uint8_t minor = 0;
43
44 reply = dbus_pending_call_steal_reply(call);
45
46 if (dbus_set_error_from_message(NULL, reply) == TRUE) {
47 error("Failed to access HAL");
48 dbus_message_unref(reply);
49 return;
50 }
51
52 if (dbus_message_get_args(reply, NULL, DBUS_TYPE_STRING, &formfactor,
53 DBUS_TYPE_INVALID) == FALSE) {
54 error("Wrong formfactor arguments");
55 dbus_message_unref(reply);
56 return;
57 }
58
59 DBG("Computer is classified as %s", formfactor);
60
61 if (formfactor != NULL) {
62 if (g_str_equal(formfactor, "laptop") == TRUE)
63 minor |= (1 << 2) | (1 << 3);
64 else if (g_str_equal(formfactor, "desktop") == TRUE)
65 minor |= 1 << 2;
66 else if (g_str_equal(formfactor, "server") == TRUE)
67 minor |= 1 << 3;
68 else if (g_str_equal(formfactor, "handheld") == TRUE)
69 minor += 1 << 4;
70 }
71
72 dbus_message_unref(reply);
73
74 /* Computer major class */
75 DBG("Setting 0x%06x for major/minor device class", (1 << 8) | minor);
76
77 btd_adapter_set_class(adapter, 0x01, minor);
78 }
79
80 static DBusConnection *connection;
81
hal_probe(struct btd_adapter * adapter)82 static int hal_probe(struct btd_adapter *adapter)
83 {
84 const char *property = "system.formfactor";
85 DBusMessage *message;
86 DBusPendingCall *call;
87
88 connection = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
89 if (connection == NULL)
90 return -ENOMEM;
91
92 message = dbus_message_new_method_call("org.freedesktop.Hal",
93 "/org/freedesktop/Hal/devices/computer",
94 "org.freedesktop.Hal.Device",
95 "GetPropertyString");
96 if (message == NULL) {
97 error("Failed to create formfactor request");
98 dbus_connection_unref(connection);
99 return -ENOMEM;
100 }
101
102 dbus_message_append_args(message, DBUS_TYPE_STRING, &property,
103 DBUS_TYPE_INVALID);
104
105 if (dbus_connection_send_with_reply(connection, message,
106 &call, -1) == FALSE) {
107 error("Failed to send formfactor request");
108 dbus_message_unref(message);
109 dbus_connection_unref(connection);
110 return -EIO;
111 }
112
113 dbus_pending_call_set_notify(call, formfactor_reply, adapter, NULL);
114
115 dbus_pending_call_unref(call);
116
117 dbus_message_unref(message);
118
119 return 0;
120 }
121
hal_remove(struct btd_adapter * adapter)122 static void hal_remove(struct btd_adapter *adapter)
123 {
124 dbus_connection_unref(connection);
125 }
126
127 static struct btd_adapter_driver hal_driver = {
128 .name = "hal",
129 .probe = hal_probe,
130 .remove = hal_remove,
131 };
132
hal_init(void)133 static int hal_init(void)
134 {
135 return btd_register_adapter_driver(&hal_driver);
136 }
137
hal_exit(void)138 static void hal_exit(void)
139 {
140 btd_unregister_adapter_driver(&hal_driver);
141 }
142
143 BLUETOOTH_PLUGIN_DEFINE(hal, VERSION,
144 BLUETOOTH_PLUGIN_PRIORITY_LOW, hal_init, hal_exit)
145