[Bluez-users] Re: Kernel module for PCMCIA/CF Bluetooth cards with CSR chipset

[Bluez-users] Re: Kernel module for PCMCIA/CF Bluetooth cards with CSR chipset

[andy thomas]

On Wed, 27 Jul 2005 wolfgang@iksw-muees.de write:

> To: bluez-users@lists.sourceforge.net
> Subject: Re: [Bluez-users] Kernel module for PCMCIA/CF Bluetooth cards with CSR chipset
> Date: Wed, 27 Jul 2005 20:54:48 +0200
> Reply-To: bluez-users@lists.sourceforge.net
>
> On Wednesday 27 July 2005 19:11, andy thomas wrote:
>> One thing puzzles me - back in March this year, Erwin Authried wrote
>> in this mailing list that PCMCIA/CF UARTs are register-compatible
>> emulations of a standard UART (see original mail below). Does this
>> mean that I could be using just the serial_cs.o kernel module for the
>> Socket CF+ card?
>
> Yes. I do it on my Zaurus.

Success! This seems to work - serial_cs is loaded as soon as I insert the 
Socket Bluetooth card and setserial reports that it is now on ttyS1

   # setserial /dev/ttyS1
   /dev/ttyS1, UART: 16950/954, Port: 0x02f8, IRQ: 3

I now load the bluez, l2cap, hci_uart kernel modules and start the HCI 
daemon, hcid - no errors are reported in either the messages or syslog 
logs. Then I try to attach the UART at /dev/ttyS1 with hciattach 
using the bcsp protocol that is supported by the CSR chipset but it times 
out:

   # hciattach ttyS1 bcsp 19200 flow
   BCSP initialization timed out

hciattach seems to ignore the -t <timeout> parameter - if I set it to 240 
second, it still times out after 10 seconds. Now, if I instead attach the 
UART using 'any' instead of 'bcsp', then it does indeed attach:

   # hciattach -t240 ttyS1 any 19200 flow
   # hciconfig -a
   hci0:   Type: UART
         BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
         DOWN
         RX bytes:236 acl:0 sco:0 events:0 errors:236
         TX bytes:4 acl:0 sco:0 commands:1 errors:0

but the interface won't come up:

   # hciconfig hci0 up
   Can't init device hci0: Connection timed out (110)

and there are a lot of error messages in the syslog about the h4 
protocol:

   Jul 28 12:06:54 latitude kernel: h4_recv: Unknown HCI packet type 60
   Jul 28 12:06:54 latitude kernel: h4_recv: Unknown HCI packet type 28


What am I doing wrong? Also, is there any way to detach the UART if it has 
been attached, without rebooting the laptop?

Andy


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Re: [Bluez-users] Re: Kernel module for PCMCIA/CF Bluetooth cards with CSR chipset

[Wolfgang Mües]

On Thursday 28 July 2005 13:10, andy thomas wrote:
>    # hciattach ttyS1 bcsp 19200 flow

ommit the baud rate and the "flow" parameter. It is done automaticly.
Baud rate is set to 230K. Other won't work.

best regards
Wolfgang


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Re: [Bluez-users] Re: Kernel module for PCMCIA/CF Bluetooth cards with CSR chipset

[andy thomas]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 1121 bytes --]

On Thu, 28 Jul 2005, Wolfgang Mües wrote:

> On Thursday 28 July 2005 13:10, andy thomas wrote:
>>    # hciattach ttyS1 bcsp 19200 flow
>
> ommit the baud rate and the "flow" parameter. It is done automaticly.
> Baud rate is set to 230K. Other won't work.

Ah, I thought I'd try a low baud rate to begin with. But it still times 
out if I use the 'bcsp' parameter although if I use 'any' then the hci0 
device is registered:

   # hciattach ttyS1 any
   # hciconfig -a
   hci0:   Type: UART
         BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
         DOWN
         RX bytes:2086 acl:0 sco:0 events:6 errors:168
         TX bytes:4 acl:0 sco:0 commands:1 errors:0

but it still won't come up.

   # hciconfig hci0 up
   Can't init device hci0: Connection timed out (110)

Maybe there is something wrong with my hcid.conf? I note that there is no 
BD address defined in the 'hciconfig -a' report above. Or perhaps I need 
to enable support in the kernel for the 'h4' protocol although I thought
this protocol was no longer recommended for CSR-chipset cards.

Many thanks,

Andy

Re: [Bluez-users] Re: Kernel module for PCMCIA/CF Bluetooth cards with CSR chipset

[Mathias Adam]

On 28.07.05 13:08:13, andy thomas wrote:
> Ah, I thought I'd try a low baud rate to begin with. But it still times 
> out if I use the 'bcsp' parameter although if I use 'any' then the hci0 
> device is registered:
> 
>   # hciattach ttyS1 any
>   # hciconfig -a
>   hci0:   Type: UART
>         BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
>         DOWN
>         RX bytes:2086 acl:0 sco:0 events:6 errors:168
>         TX bytes:4 acl:0 sco:0 commands:1 errors:0
> 
> but it still won't come up.
> 
>   # hciconfig hci0 up
>   Can't init device hci0: Connection timed out (110)

if you're using a 2.6 kernel: did you apply the patch for the serial
driver I posted here some time ago? had the same problems before.

Regards,
Mathias

-- 
Perfection is achieved not when you have nothing more to add,
but when you have nothing left to take away.
 - Antoine de Saint-Exupery


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