1/* 2 * 3 * BlueZ - Bluetooth protocol stack for Linux 4 * 5 * Copyright (C) 2004-2009 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#include <bluetooth/hci.h> 33#include <bluetooth/hci_lib.h> 34 35#include "plugin.h" 36#include "adapter.h" 37#include "logging.h" 38#include "dbus-hci.h" 39 40static void formfactor_reply(DBusPendingCall *call, void *user_data) 41{ 42 struct btd_adapter *adapter = user_data; 43 const char *formfactor = NULL; 44 DBusMessage *reply; 45 uint8_t cls[3], minor = 0; 46 int dd; 47 48 reply = dbus_pending_call_steal_reply(call); 49 50 if (dbus_set_error_from_message(NULL, reply) == TRUE) { 51 error("Failed to access HAL"); 52 dbus_message_unref(reply); 53 return; 54 } 55 56 if (dbus_message_get_args(reply, NULL, DBUS_TYPE_STRING, &formfactor, 57 DBUS_TYPE_INVALID) == FALSE) { 58 error("Wrong formfactor arguments"); 59 dbus_message_unref(reply); 60 return; 61 } 62 63 debug("Computer is classified as %s", formfactor); 64 65 if (formfactor != NULL) { 66 if (g_str_equal(formfactor, "laptop") == TRUE) 67 minor |= (1 << 2) | (1 << 3); 68 else if (g_str_equal(formfactor, "desktop") == TRUE) 69 minor |= 1 << 2; 70 else if (g_str_equal(formfactor, "server") == TRUE) 71 minor |= 1 << 3; 72 else if (g_str_equal(formfactor, "handheld") == TRUE) 73 minor += 1 << 4; 74 } 75 76 dbus_message_unref(reply); 77 78 dd = hci_open_dev(adapter_get_dev_id(adapter)); 79 if (dd < 0) 80 return; 81 82 if (hci_read_class_of_dev(dd, cls, 500) < 0) { 83 hci_close_dev(dd); 84 return; 85 } 86 87 debug("Current device class is 0x%02x%02x%02x\n", 88 cls[2], cls[1], cls[0]); 89 90 /* Computer major class */ 91 debug("Setting 0x%06x for major/minor device class", (1 << 8) | minor); 92 93 hci_close_dev(dd); 94 95 set_major_and_minor_class(adapter, 0x01, minor); 96} 97 98static DBusConnection *connection; 99 100static int hal_probe(struct btd_adapter *adapter) 101{ 102 const char *property = "system.formfactor"; 103 DBusMessage *message; 104 DBusPendingCall *call; 105 106 connection = dbus_bus_get(DBUS_BUS_SYSTEM, NULL); 107 if (connection == NULL) 108 return -ENOMEM; 109 110 message = dbus_message_new_method_call("org.freedesktop.Hal", 111 "/org/freedesktop/Hal/devices/computer", 112 "org.freedesktop.Hal.Device", 113 "GetPropertyString"); 114 if (message == NULL) { 115 error("Failed to create formfactor request"); 116 dbus_connection_unref(connection); 117 return -ENOMEM; 118 } 119 120 dbus_message_append_args(message, DBUS_TYPE_STRING, &property, 121 DBUS_TYPE_INVALID); 122 123 if (dbus_connection_send_with_reply(connection, message, 124 &call, -1) == FALSE) { 125 error("Failed to send formfactor request"); 126 dbus_message_unref(message); 127 dbus_connection_unref(connection); 128 return -EIO; 129 } 130 131 dbus_pending_call_set_notify(call, formfactor_reply, adapter, NULL); 132 133 dbus_pending_call_unref(call); 134 135 dbus_message_unref(message); 136 137 return 0; 138} 139 140static void hal_remove(struct btd_adapter *adapter) 141{ 142 dbus_connection_unref(connection); 143} 144 145static struct btd_adapter_driver hal_driver = { 146 .name = "hal", 147 .probe = hal_probe, 148 .remove = hal_remove, 149}; 150 151static int hal_init(void) 152{ 153 return btd_register_adapter_driver(&hal_driver); 154} 155 156static void hal_exit(void) 157{ 158 btd_unregister_adapter_driver(&hal_driver); 159} 160 161BLUETOOTH_PLUGIN_DEFINE(hal, VERSION, 162 BLUETOOTH_PLUGIN_PRIORITY_LOW, hal_init, hal_exit) 163