I tried bluetooth connection test in the Ubuntu under Vmware environment. Ubuntu is 14.04 lts, Bluetooth is USB-dongle and BT stack is Bluez 5.35. I don't use pulseaudio.
I used bluetoothctl command to scan, pairing and connection. But the connection is fail. Below is the log of bluetoothctl
$ sudo bluetoothctl
[bluetooth]# power on
[bluetooth]# show
Controller 00:1A:7D:DA:xx:xx (public)
Name: ubuntu
Alias: ubuntu-0
Class: 0x00000000
Powered: yes
Discoverable: no
Pairable: yes
UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
Modalias: usb:v1D6Bp0246d0532
Discovering: no
[bluetooth]# scan on // Wait until found BT headset
[bluetooth]# scan off
[bluetooth]# devices
Device 11:11:22:xx:xx:xx Test
Device 0C:E0:E4:xx:xx:xx PLT_Legend
[bluetooth]# pair 0C:E0:E4:xx:xx:xx // try pairing with 0C:E0:E4:xx:xx:xx
Attempting to pair with 0C:E0:E4:xx:xx:xx
[CHG] Device 0C:E0:E4:xx:xx:xx Connected: yes
[PLT_Legend]# interfaces_added
[CHG] Device 0C:E0:E4:xx:xx:xx Modalias: bluetooth:v0055p0113d0067
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 00001108-0000-1000-8000-00805f9b34fb
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 0000110b-0000-1000-8000-00805f9b34fb
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 0000110e-0000-1000-8000-00805f9b34fb
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 0000111e-0000-1000-8000-00805f9b34fb
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 00001200-0000-1000-8000-00805f9b34fb
[CHG] Device 0C:E0:E4:xx:xx:xx UUIDs: 82972387-294e-4d62-97b5-2668aa35f618
[CHG] Device 0C:E0:E4:xx:xx:xx ServicesResolved: yes
[CHG] Device 0C:E0:E4:xx:xx:xx Paired: yes
Pairing successful
[CHG] Device 0C:E0:E4:xx:xx:xx ServicesResolved: no
[CHG] Device 0C:E0:E4:xx:xx:xx Connected: no
[PLT_Legend]# connect 0C:E0:E4:xx:xx:xx
Attempting to connect to 0C:E0:E4:xx:xx:xx
[CHG] Device 0C:E0:E4:xx:xx:xxConnected: yes
Failed to connect: org.bluez.Error.Failed
I found above bluez doesn't have a2dp profile. Actually, bluez5.x and pulseaudio is combined closely. If don't use pulseaudio, user has to add extra profile(a2dp, or hspag).
Below code is sample for add a2dpsink , a2dpsource and haspag.
#define A2DP_SOURCE_ENDPOINT "/MediaEndpoint/A2DPSource"
#define A2DP_SINK_ENDPOINT "/MediaEndpoint/A2DPSink"
#define HSP_AG_PROFILE "/Profile/HSPAGProfile"
#define PA_BLUETOOTH_UUID_HSP_AG "00001112-0000-1000-8000-00805f9b34fb"
#define PA_BLUETOOTH_UUID_A2DP_SOURCE "0000110a-0000-1000-8000-00805f9b34fb"
#define PA_BLUETOOTH_UUID_A2DP_SINK "0000110b-0000-1000-8000-00805f9b34fb"
static void register_profile_reply(DBusPendingCall *call, void *user_data)
{
//struct bluetooth_profile *profile = user_data;
DBusMessage *reply = dbus_pending_call_steal_reply(call);
DBusError derr;
dbus_error_init(&derr);
if (!dbus_set_error_from_message(&derr, reply)) {
printf("Profile %s registered", (char *)user_data);
goto done;
}
//unregister_profile(profile);
printf("bluetooth: RequestProfile error: %s, %s", derr.name,
derr.message);
dbus_error_free(&derr);
done:
dbus_message_unref(reply);
}
static DBusConnection *connection;
void btd_profile_add_hspag(const char *profile, const char *uuid)
{
DBusMessage *msg;
DBusMessageIter iter, opt;
DBusPendingCall *call;
connection = btd_get_dbus_connection();
msg = dbus_message_new_method_call("org.bluez", "/org/bluez",
"org.bluez.ProfileManager1",
"RegisterProfile");
if( msg == NULL ) {
printf("%s : msg is null \n", __func__);
}
dbus_message_iter_init_append(msg, &iter);
dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH, &profile);
dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &uuid);
dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
DBUS_TYPE_STRING_AS_STRING
DBUS_TYPE_VARIANT_AS_STRING
DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
&opt);
dbus_message_iter_close_container(&iter, &opt);
if (!g_dbus_send_message_with_reply(connection, msg, &call, -1)) {
printf("%s:%s - fail g_dbus_send_message_with_reply() \n", __FILE__, __func__);
//unregister_profile(profile);
goto failed;
}
dbus_pending_call_set_notify(call, register_profile_reply, &profile,
NULL);
dbus_pending_call_unref(call);
failed:
dbus_message_unref(msg);
return;
}
void btd_profile_add(void)
{
btd_profile_add_hspag(HSP_AG_PROFILE, PA_BLUETOOTH_UUID_HSP_AG);
btd_profile_add_hspag(A2DP_SOURCE_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SOURCE);
btd_profile_add_hspag(A2DP_SINK_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SINK);
}
After that, the bluez has a2dp, hspag profile without pulseaudio. I can check it with "show" command of the bluetoothctl.
[bluetooth]# show
Controller 00:1A:7D:xx:xx:xx
Name: ubuntu
Alias: ubuntu-0
Class: 0x000000
Powered: yes
Discoverable: no
Pairable: yes
UUID: Headset AG (00001112-0000-1000-8000-00805f9b34fb)
UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
UUID: Audio Source (0000110a-0000-1000-8000-00805f9b34fb)
UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb)
Modalias: usb:v1D6Bp0246d0523
Discovering: no
The bluetooth connection still fail even though a2dp profile is added. Through btmon trace, the rfcomm connection is disconnected, and next, l2cap connection is also disconnected. I don't know what i'm missing. What do i need other to run bluez 5.35 without pulseaudio?
