Nokia 7650 & Bluetooth & Linux
			  mini (or even micro) HOWTO

1. Requirements

- kernel with -mh patch:
	http://www.holtmann.org/linux/kernel/

- Bluez
	http://bluez.sourceforge.net

- OpenOBEX
	http://openobex.sourceforge.net

- ObexSERVER
	http://www.frasunek.com/sources/unix/obexserver.c

- ussp-push (only if you want upload files to phone)
	http://www.unrooted.net/hacking/bluez-rfcomm-obex.html

2. Kernel

You have to patch your kernel with recent -mh patch. Then compile with:

CONFIG_BLUEZ=m
CONFIG_BLUEZ_L2CAP=m
CONFIG_BLUEZ_SCO=m
CONFIG_BLUEZ_RFCOMM=m
CONFIG_BLUEZ_RFCOMM_TTY=y
CONFIG_BLUEZ_BNEP=m

and proper Bluetooth device. I use generic USB Bluetooth dongle:

CONFIG_BLUEZ_HCIUSB=m

Add modules into /etc/modules.conf:

alias net-pf-31 bluez
alias bt-proto-0 l2cap
alias bt-proto-2 sco
alias bt-proto-3 rfcomm

Load your Bluetooth device driver (usually hci_usb).
Create /dev/rfcomm* with:

	# cd /dev && mknod rfcomm0 c 216 0 && mknod rfcomm1 c 216 1

3. Bluez

Compile, install and configure Bluez userland apps. This is well documented
on Bluez homepage.

Run hcid and sdpd.

4. OpenOBEX

Compile and install OpenOBEX lib. Again, well documented on OpenOBEX site.

5. ObexSERVER

Download openobex-apps-1.0.0.tar.gz from OpenOBEX homepage. Compile
it in such tricky way:

	$ tar -xzvf openobex-apps-1.0.0.tar.gz
	$ cd openobex-apps-1.0.0
	$ ./configure && make
	$ cd src
	$ wget http://www.frasunek.com/sources/unix/obexserver.c
	$ cc -o obexserver obexserver.c libmisc.a -lopenobex
	# chown root.root obexserver && cp obexserver /usr/local/bin

Register SDP service for OpenOBEX. Nokia uses RfCOMM channel 10:

	# sdptool add --channel=10 OPUSH

Run ObexSERVER:

	# obexserver

Now you can send photos from Nokia 7650 to Bluetooth-enabled Linux :)

6. Uploading files to Nokia

Download ussp-push software. It needs patching to work on latest OpenOBEX.
Apply the following patch, compile and install:

--- obex_main.c.old	Sat Feb  1 14:12:54 2003
+++ obex_main.c	Sat Feb  1 14:13:13 2003
@@ -221,7 +221,7 @@
          return NULL;
      }
  
 -    custfunc.userdata = gt->userdata;
 +    custfunc.customdata = gt->userdata;
      custfunc.connect = cobex_connect;
      custfunc.disconnect = cobex_disconnect;
      custfunc.write = cobex_write;

Now you need to configure RfCOMM channel. Nokia uses channel number 10 for
OBEX Push protocol:

	# rfcomm bind /dev/rfcomm0 <bid> 10

Ussp-push should work now. 

7. Dial-up Networking over Bluetooth

The only thing needed to run DUN is suitable RfCOMM channel. Create it with:

	# rfcomm bind /dev/rfcomm0 <bid> 1

Now you can run pppd over /dev/rfcomm0. GPRS can be turned on with AT commands.
I use the following configuration in Polish GSM network (Plus GSM):

	# pppd /dev/rfcomm0 115200 connect "chat -V -f /etc/ppp/chatscripts/plusgsm" crtscts modem -detach noccp defaultroute noauth ipcp-accept-remote ipcp-accept-local noipdefault debug

With chatscript:

ABORT BUSY
ABORT 'NO CARRIER'
ABORT VOICE
ABORT 'NO DIALTONE'
ABORT 'NO DIAL TONE'
ABORT 'NO ANSWER'
'' ATZ
OK-AT-OK AT+CGDCONT=1,"IP","www.plusgsm.pl"
OK "ATD*99***1#"
CONNECT ''

8. Epilogue

I'd like to thank OpenOBEX and Bluez people for their great software.