[Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Brandon Philips]

Hello-

I am running 2.6.21-rc6 with sco-flowcontrol-v4.2.diff applied and I am
getting the following error when trying to use my Platronics 640
headset.  The computer is a Thinkpad x60s running Debian unstable.

Any suggestions?  I am willing to test patches, etc.

Cheers,

	Brandon

philips@plankton:~$ aplay -D headset /usr/share/sounds/ekiga/busytone.wav
Playing WAVE '/usr/share/sounds/ekiga/busytone.wav' : Signed 16 bit
Little Endian, Rate 8000 Hz, Mono
ALSA lib pcm_sco.c:273:(sco_headset_hw_params) Unable to set number of
SCO buffers : please upgrade your Kernel !
aplay: set_params:965: Unable to install hw params:
ACCESS:  RW_INTERLEAVED
FORMAT:  S16_LE
SUBFORMAT:  STD
SAMPLE_BITS: 16
FRAME_BITS: 16
CHANNELS: 1
RATE: 8000
PERIOD_TIME: 3000
PERIOD_SIZE: 24
PERIOD_BYTES: 48
PERIODS: 167
BUFFER_TIME: 501000
BUFFER_SIZE: 4008
BUFFER_BYTES: 8016
TICK_TIME: [0 0]

philips@plankton:~$ headsetd -n
headsetd[6326]: Bluetooth headset daemon version 0.5
headsetd[6326]: Configuration phase ended: target bdaddr is
00:03:89:59:DE:F9, timeout is 6000 ms
headsetd[6326]: Changing state: Idle-->Paging
headsetd[6326]: Changing state: Paging-->Connecting
headsetd[6326]: Changing state: Connecting-->Ready
headsetd[6326]: Changing state: Ready-->Opening
headsetd[6326]: SCO channel opened handle=0x0001 mtu=64
headsetd[6326]: Changing state: Opening-->Streaming
headsetd[6326]: Appli closed socket
headsetd[6326]: Changing state: Streaming-->Zombie
headsetd[6326]: Nobody uses SCO channel anymore, closing it.
headsetd[6326]: Changing state: Zombie-->Connected

Relevant dmesg output:
hci_scodata_packet: hci0 SCO packet for unknown connection handle 1

~/.asoundrc
pcm.headset {
        @args [BDADDR TIMEOUT]

        # The Bluetooth device address for target headset, used for
        # Audio Gateway (PC) initiated connections
        # Please note that this value is ignored when the connection is
        # Headset initiated
        @args.BDADDR {
                type string
                default 00:03:89:59:XX:XX  # XX:XX for privacy
        }

        # This value represents how long we will try to reach the
        # headset, until we give up.
        # Value is in milliseconds
        @args.TIMEOUT {
                type integer
                default 6000
        }

        type        sco
        bdaddr      $BDADDR
        timeout     $TIMEOUT
}

ctl.headset {
        type sco
}


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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Brad Midgley]

Brandon

cvs update your plugz to head and it should work.

brad

> ALSA lib pcm_sco.c:273:(sco_headset_hw_params) Unable to set number of
> SCO buffers : please upgrade your Kernel !

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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Brandon Philips]

On 12:34 Sun 15 Apr 2007, Brad Midgley wrote:
> Brandon
> 
> cvs update your plugz to head and it should work.

Thanks- it seems the Debian package in unstable was a few revisions
behind.

Now I have mplayer playing great- mpd is broken though.  It connects to
my headset but then quickly dies.  I will have to ping the developers on
that.

Thanks!

	Brandon

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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[John Frankish]

Hi,

Apologies for jumping onto the end of this thread but I joined the 
mailing list a few days after the initial message.

 > ALSA lib pcm_sco.c:273:(sco_headset_hw_params) Unable to set number of
 > SCO buffers : please upgrade your Kernel !

I have exactly the same error on a machine using DSL-N (2.6.12) and a 
Sonyericsson HBH-610 Bluetooth headset - the same setup works fine 
with DSL (2.4.26) and bluezsco.

I can compile plugz without problems using:

cvs 
-d:pserver:anonymous@bluetooth-alsa.cvs.sourceforge.net:/cvsroot/bluetooth-alsa 
login
cvs 
-d:pserver:anonymous@bluetooth-alsa.cvs.sourceforge.net:/cvsroot/bluetooth-alsa 
co plugz
cd plugz
./bootstrap
./configure --prefix=/usr
make
sudo make install

But what cvs command is meant by "cvs update your plugz to head and 
it should work"?

Thanks
John


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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Brad Midgley]

John

> I can compile plugz without problems

if you just checked plugz out, then that's equivalent to an old checkout
that you updated with "cvs update -d"

in your case you need the kernel patch under plugz/patches

brad

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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[John Frankish]

Brad,

Thanks - I guess I was fooled by the "upgrade your plugz to head" 
part of the phrase. I deleted my plugz download directory and 
recompiled it from the latest cvs with the same results.

The earliest patch in the cvs is v2.0 for 2.6.18-mh7 - given that I 
have 2.6.12 (DSL-N is like Knoppix, you cannot easily update the 
kernel), is there a patch archive somewhere with a patch closer to my 
kernel or do I need to try and apply the patch "manually"?

John

At 20:50 22-04-07, you wrote:
>John
>
> > I can compile plugz without problems
>
>if you just checked plugz out, then that's equivalent to an old checkout
>that you updated with "cvs update -d"
>
>in your case you need the kernel patch under plugz/patches
>
>brad
>
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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Brad Midgley]

John

> The earliest patch in the cvs is v2.0 for 2.6.18-mh7 - given that I 
> have 2.6.12 (DSL-N is like Knoppix, you cannot easily update the 
> kernel), is there a patch archive somewhere with a patch closer to my 
> kernel or do I need to try and apply the patch "manually"?

Fabien may have submitted an early patch that is closer to your kernel
but rather than backport or dig in the archives I suggest you consider
trying a newer kernel.

Brad

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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Marc Haber]

On Sun, Apr 15, 2007 at 02:57:29AM -0700, Brandon Philips wrote:
> I am running 2.6.21-rc6 with sco-flowcontrol-v4.2.diff applied and I am
> getting the following error when trying to use my Platronics 640
> headset.  The computer is a Thinkpad x60s running Debian unstable.

I have exactly the same issue on a hp notebook, also running Debian
unstable. I exported current CVS HEAD, applied the Debian .diff and
built a local package, and I still have the same problem. Only that
the "Unable to set number of SCO buffers" error message now has
pcm_sco.c:277 as line number.

Any more hints?

Greetings
Marc

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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[John Frankish]

Brad,

Whilst it's reasonably difficult to move to a newer kernel in DSL-N, 
the main reason for making plugz work on this kernel is that I can 
then make it available as a DSL-N extension for many others to use.

I tried the diff2 patch on my kernel - it ran with about 5 failures, 
4 of which I added manually. After reboot, I had the same SCO buffers 
error message. I wonder - does plugz need a certain version revision 
of bluez-utils or will it work with any version? I am using 
bluez-utils 2.15 as I cannot make the "pin" part of things work on 
DSL-N with later versions.

Where would Fabien have put the earlier SCO patch?

Thanks
John

At 17:45 24-04-07, you wrote:
>John
>
> > The earliest patch in the cvs is v2.0 for 2.6.18-mh7 - given that I
> > have 2.6.12 (DSL-N is like Knoppix, you cannot easily update the
> > kernel), is there a patch archive somewhere with a patch closer to my
> > kernel or do I need to try and apply the patch "manually"?
>
>Fabien may have submitted an early patch that is closer to your kernel
>but rather than backport or dig in the archives I suggest you consider
>trying a newer kernel.
>
>Brad
>
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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Klaus]

Marc Haber <mh+bluez-devel <at> zugschlus.de> writes:
[...]
> I still have the same problem. Only that
> the "Unable to set number of SCO buffers" error message now has
> pcm_sco.c:277 as line number.

I have the same problem on 2.6.21 with the patch applied.

I looked a little into the problem and it appears that everything is actually
working as it is intended - but that doesn't help us much.

In plugz/../pcm_sco.c: sco_headset_hw_params(), 
   setsockopt(...,SOL_SCO,...) is called, but it fails with ENOPROTOOPT
"Protocol not available".

   setsockopt() for protocol level SOL_SCO is implemented in the kernel in
net/bluetooth/sco.c: sco_sock_setsockopt(), but this function only does one
thing - it returns ENOPROTOOPT:

...
        switch (optname) {
        default:
                err = -ENOPROTOOPT;
                break;
        }
...

I am a bit curious - how can this work for anybody?

BR, Klaus






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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Klaus]

Klaus <projectu <at> gmail.com> writes:
> 
> In plugz/../pcm_sco.c: sco_headset_hw_params(), 
>    setsockopt(...,SOL_SCO,...) is called, but it fails with ENOPROTOOPT
> "Protocol not available".
> 
>    setsockopt() for protocol level SOL_SCO is implemented in the kernel in
> net/bluetooth/sco.c: sco_sock_setsockopt(), but this function only does one
> thing - it returns ENOPROTOOPT:

If the method isn't implemented in the kernel, then IMHO, the obvious thing to
do is to remove the offending calls to setsockopt() from pcm_sco.c.

And - surprice surprice, it works - there is sound in the headset. But the joy
is short.

----
 $ mplayer -ao alsa:device=headset ~/eyes_on_me.ogg
[...]
Playing /home/kp/eyes_on_me.ogg.
Audio file file format detected.
[...]
AO: [alsa] 8000Hz 1ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A: 334.3 (05:34.3) of 333.0 (05:33.0)  1.2%        
----

mplayer stops playing after a few sec, and then after another few secs this
happens:

pingus kernel: invalid opcode: 0000 [#1]
[...]

In syslog it looks like this:
----
Apr 29 17:01:00 pingus headsetd[3175]: Bluetooth headset daemon version 0.5
Apr 29 17:01:17 pingus headsetd[3175]: Configuration phase ended: target bdaddr
is 00:02:76:80:27:1F, timeout is 6000 ms
Apr 29 17:01:17 pingus headsetd[3175]: Changing state: Idle-->Paging
Apr 29 17:01:18 pingus headsetd[3175]: Changing state: Paging-->Connecting
Apr 29 17:01:18 pingus hcid[2230]: link_key_request (sba=00:01:53:00:CF:08,
dba=00:02:76:80:27:1F)
Apr 29 17:01:18 pingus headsetd[3175]: Changing state: Connecting-->Ready
Apr 29 17:01:18 pingus kernel: Bluetooth: SCO (Voice Link) ver 0.5
Apr 29 17:01:18 pingus kernel: Bluetooth: SCO socket layer initialized
Apr 29 17:01:18 pingus headsetd[3175]: Changing state: Ready-->Opening
Apr 29 17:01:19 pingus headsetd[3175]: SCO channel opened handle=0x002d mtu=64
Apr 29 17:01:19 pingus headsetd[3175]: Changing state: Opening-->Streaming
Apr 29 17:01:26 pingus headsetd[3175]: Appli closed socket
Apr 29 17:01:26 pingus headsetd[3175]: Changing state: Streaming-->Zombie
Apr 29 17:01:30 pingus headsetd[3175]: Nobody uses SCO channel anymore, 
  closing it.
Apr 29 17:01:30 pingus headsetd[3175]: Changing state: Zombie-->Connected
Apr 29 17:01:30 pingus kernel: hci_scodata_packet: hci0 SCO packet for unknown
  connection handle 45
Apr 29 17:01:30 pingus last message repeated 2 times
Apr 29 17:01:45 pingus kernel: usb 1-1: USB disconnect, address 3
Apr 29 17:01:45 pingus kernel: __tx_submit: hci0 tx submit failed urb c1e722bc
  type 3 err -19
Apr 29 17:01:45 pingus kernel: __tx_submit: hci0 tx submit failed urb c1e722bc
  type 3 err -19
Apr 29 17:01:45 pingus kernel: slab error in verify_redzone_free(): cache
  `size-512': memory outside object was overwritten
Apr 29 17:01:45 pingus kernel:  [<c04061e9>] show_trace_log_lvl+0x1a/0x2f
Apr 29 17:01:45 pingus kernel:  [<c04067ad>] show_trace+0x12/0x14
Apr 29 17:01:45 pingus kernel:  [<c0406831>] dump_stack+0x16/0x18
Apr 29 17:01:45 pingus kernel:  [<c04791e6>] __slab_error+0x29/0x2b
Apr 29 17:01:45 pingus kernel:  [<c047979a>] cache_free_debugcheck+0xa9/0x19d
Apr 29 17:01:45 pingus kernel:  [<c0479ae0>] kfree+0x74/0xc2
Apr 29 17:01:45 pingus kernel:  [<e098d34b>] hci_usb_close+0xc2/0x121 [hci_usb]
Apr 29 17:01:45 pingus kernel:  [<e098dd0e>] hci_usb_disconnect+0x2a/0x6f
   [hci_usb]
Apr 29 17:01:45 pingus kernel:  [<c057a61e>] usb_unbind_interface+0x30/0x63
Apr 29 17:01:45 pingus kernel:  [<c05628ba>] __device_release_driver+0x74/0x90
Apr 29 17:01:45 pingus kernel:  [<c0562d39>] device_release_driver+0x35/0x4c
Apr 29 17:01:45 pingus kernel:  [<c05622c7>] bus_remove_device+0x73/0x82
Apr 29 17:01:45 pingus kernel:  [<c056090e>] device_del+0x16e/0x1d2
Apr 29 17:01:45 pingus kernel:  [<c057840c>] usb_disable_device+0x5f/0xbc
Apr 29 17:01:45 pingus kernel:  [<c057514b>] usb_disconnect+0x9a/0x119
Apr 29 17:01:45 pingus kernel:  [<c0575df2>] hub_thread+0x2e2/0x992
Apr 29 17:01:45 pingus kernel:  [<c043832b>] kthread+0xb3/0xdc
Apr 29 17:01:45 pingus kernel:  [<c0405cd3>] kernel_thread_helper+0x7/0x10
Apr 29 17:01:45 pingus kernel:  =======================
Apr 29 17:01:45 pingus kernel: c0c27ca5: redzone 1:0x5a5a5a5a, 
  redzone 2:0x46c05ac8.
Apr 29 17:01:45 pingus kernel: ------------[ cut here ]------------
Apr 29 17:01:45 pingus kernel: kernel BUG at mm/slab.c:2877!
Apr 29 17:01:45 pingus kernel: invalid opcode: 0000 [#1]
Apr 29 17:01:45 pingus kernel: SMP 
Apr 29 17:01:45 pingus kernel: last sysfs file:
/devices/pci0000:00/0000:00:02.0/usb1/idVendor
[...]
----

Klaus


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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Brad Midgley]

Klaus

> In plugz/../pcm_sco.c: sco_headset_hw_params(), 
>    setsockopt(...,SOL_SCO,...) is called, but it fails with ENOPROTOOPT
> "Protocol not available".
> 
>    setsockopt() for protocol level SOL_SCO is implemented in the kernel in
> net/bluetooth/sco.c: sco_sock_setsockopt(), but this function only does one
> thing - it returns ENOPROTOOPT:
> 
> ...
>         switch (optname) {
>         default:
>                 err = -ENOPROTOOPT;
>                 break;
>         }
> ...
> 
> I am a bit curious - how can this work for anybody?

you're looking at the upatched sco.c or maybe one hunk failed.
sco-flowcontrol-v4.2.diff has changes for setsockopt() around line 550.

we did actually change the constants for the setsockopt call, but if you
have a recently updated plugz it should actually try both the old and
new constants.

brad

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Re: [Bluez-devel] Unable to set number of SCO buffers : please upgrade your Kernel !

[Klaus]

Brad Midgley <bmidgley <at> xmission.com> writes:
> 
> you're looking at the upatched sco.c or maybe one hunk failed.
> sco-flowcontrol-v4.2.diff has changes for setsockopt() around line 550.

hrmp, my fault! You are so right, and everything is working fine with the patch! 

Now I just have to figure out how to use the headset from Ekiga.
 
(If you are curious, then I had updated my Fedora kernel-2.6.spec file with the
patch - but forgot the %patchxxx to actually enable the patch).


Thanks, Klaus






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