Get local Bluetooth Address with v8.0a

[jonmccune]

I need to access the local Bluetooth address in an application I'm developing. The phone is an N70, so I'm using Series 60 SDK 2.6.

There is a previous thread on this, with respect to Symbian v7.0s:
http://discussion.forum.nokia.com/fo...p/t-83121.html

In fact, that code does work on a v7.0s phone that I have. However, with version 8.0a, I'm receiving all zeros as the Bluetooth address. Here are two code snippets I have tried:

The first, based on that previous post:

TPckgBuf<TBTDevAddr> iDevAddr;
RSocket iSocket;
RSocketServ iSocketServer;
User::LeaveIfError(iSocketServer.Connect());
TProtocolDesc protocolInfo;
User::LeaveIfError(iSocketServer.FindProtocol(_L("BTLinkManager"), protocolInfo));
User::LeaveIfError(iSocket.Open(iSocketServer,KBTAddrFamily,KSockSeqPacket,KL2CAP));
TRequestStatus aStatus;
TBuf<128> aAddr;

iSocket.Ioctl(KHCILocalAddressIoctl, aStatus, &iDevAddr, KSolBtHCI);
User::WaitForRequest(aStatus);
iDevAddr().GetReadable(aAddr, _L("btaddr: "), _L(":"), _L("Q"));
iLog->Write(aAddr);

THCILocalVersionBuf lvb;
lvb().iLMPSubversion=0; // just for testing if nothing happens
iSocket.Ioctl(KHCILocalVersionIoctl, aStatus, &lvb, KSolBtHCI);
User::WaitForRequest(aStatus);
iLog->WriteFormat(_L("%d %d %d %d %d\n"),
lvb().iHCIVersion,lvb().iHCIRevision,
lvb().iLMPVersion,lvb().iManufacturerName,lvb().iLMPSubversion);

Much to my surprise, this code successfully reads the local version information, but not the bluetooth address.

Here is another snippet I've tried, which also returns all zeros for the Bluetooth address:


User::LeaveIfError(iSocketServer.Connect());
TInt result = iListeningSocket.Open(iSocketServer, KServerTransportName /*RFCOMM*/);
if (result != KErrNone)
{
iSocketServer.Close();
User::Leave(result);
}

// Get a channel to listen on - same as the socket's port number
TInt channel;
User::LeaveIfError(
iListeningSocket.GetOpt(
KRFCOMMGetAvailableServerChannel,
KSolBtRFCOMM, channel));
iFileLog->WriteFormat(_L("Channel %d"),channel);
TBTSockAddr listeningAddress;
listeningAddress.SetPort(channel);

TBuf<128> aAddr;
TBTDevAddr iDevAddr;
iDevAddr = listeningAddress.BTAddr();
iDevAddr.GetReadable(aAddr, _L("BTADDR: "), _L(":"), _L("R"));
iFileLog->Write(aAddr);

I often get channel 4 out of this snippet, but no bluetooth address.

I'm guessing there is some kind of API change between v7.0s and v8.0a/v8.1a that affects this behavior, since there were similar changes wrt the Bluetooth security settings.

I'm building this stuff in Carbide C++ Express v1.1 with the ARMI target for S60 2.6.

Can anybody help me out?

Thanks!
-Jon

[jonmccune]

So I figured this out. In v8.0a one should use the "Publish-Subscribe API". It actually says this in the README_BLUETOOTH.txt file which comes with the 2.6 API:

Bluetooth Changes
=================
Due to introduction of new architecture there are changes in bluetooth
api which will impact new application development.The major changes
that are required from developer perspective are listed below.

Stack/Hardware Settings
=======================
Publish and subscribe method is provided for setting the stack
settings.The bluetooth stack publishes the values of its various
settings in the category KPropertyUidBluetoothCategory and applications
can request that settings be changed by setting the value of
the equivalent property in the KPropertyUidBluetoothControlCategory.

Therefore a typical pattern for an application wishing to set the
device discoverable would be:
1. Subscribe to the key of interest in the Bluetooth category.
2. Call the RProperty::Set(...) method on the matching key in the
Bluetooth Control category.
3. When the stack has serviced the request, it will re-publish
the new value of the key (whether changed or unchanged)
on the Bluetooth category, calling the RunL of any subscribers

The Available property keys are
Key: KpropertyKeyBluetoothLocalDeviceAddress
Type: ByteArray
Description: The Local Device Address as a
descriptor (BluetoothCategory only)


A quick Google search on KpropertyKeyBluetoothLocalDeviceAddress lead me to this page at NewLC:
http://www.newlc.com/Publish-Subscribe-API-and.html

TPckgBuf<TBTDevAddr> aDevAddrPckg;
TInt error = RProperty::Get(KPropertyUidBluetoothCategory, KPropertyKeyBluetoothLocalDeviceAddress, aDevAddrPckg);

Two lines. That's much better! If only it wasn't so f***ing impossible to find this information in a reasonable period of time.