Re: [Bluez-devel] Broadcom adapter

["Eduardo Margallo" <eduardo.margallo@gmail.com>]

Hi everyone,

1. I've been studying the pairing and connection sequences both in
Windows and Linux and haven't been able to spot any glitch up to now.
Do you have any suggestions about what I should look at? Where is the
"csr's nonvolatile setting for
hci vs. pcm audio delivery" in the code? Are some pointers available?

2. On the other hand, I have seen that HCI_BROKEN_ISOC is defined for
Broadcom 0x0a5c 0x200a adapters, what leads to lack of ISOC transfers
in the module. If I understood it correctly, this immediately implies
no SCO. I have tried to enable isochronous transfers, but it obviously
does not work. The cpu seems to be trapped in interrupts most of the
time (>95%hi) and I get around 20 of these messages in my kern.log per
second:

Jun 17 22:52:49 babosa kernel: hci_usb_rx_complete: hci0 urb c1cfb414
type 3 resubmit status 0
Jun 17 22:52:49 babosa kernel: hci_usb_rx_complete: hci0 urb c1cfb814
type 3 status 0 count 0 flags 2

I would say that the lack of ISOC transfers is the real cause for
non-working SCO channels. Is this correct?

Kind regards,

Eduardo

2006/6/12, Eduardo Margallo < eduardo.margallo@gmail.com>:
> Hi Brad,
>
> well, in fact using the Broadcom Adapter under Windows with
> BlueSoleil, I get a perfect audio connection. After pairing, I just
> have to press the top button on my Jabra Headset and voil=E0. I have
> attached the HCI communication (monitoring usb traffic and decoding
> the packages in python) between both devices.
>
> This sequence started when I pressed the connect button with both
> devices paired. I stopped it after SCO traffic was going on. If you
> need a different connection sequence, I can provide it. It is not a
> lot of work now.
>
> Cheers,
>
> Eduardo
>
> ------------------------------------------------
> UP EVT: Connection Request Event Data =3D D3 73 7C 17 13 00 0C 04 20 01
>         BD_ADDR 0x13177C73D3 Class_of_Device 0x20040C Link_Type 0x1
> DOWN CMD: Accept Connection Request Command Data =3D 07 D3 73 7C 17 13 00=
 00
>         BD_ADDR 0x13177C73D3 Role 0x0 Remaining Data:  [0]
> UP EVT: Command Status Event Data =3D 00 01 09 04
>         Status 0x0 Num_HCI_Command_Packets 0x1 Command_Opcode 0x409
> UP CMD: Accept Connection Request Command Data =3D 07 D3 73 7C 17 13 00
> 00 20 00 00 00 00 00 0A 00
>         BD_ADDR 0x13177C73D3 Role 0x0 Remaining Data:  [0, 32, 0, 0,
> 0, 0, 0, 10, 0]
> UP EVT: Role Change Event Data =3D 00 D3 73 7C 17 13 00 00
>         Status 0x0 BD_ADDR 0x13177C73D3 New_Role 0x0
> UP EVT: Link Key Request Event Data =3D D3 73 7C 17 13 00
>         BD_ADDR 0x13177C73D3
> DOWN CMD: Link Key Request Reply Command Data =3D 16 D3 73 7C 17 13 00
>  13 80 BA 19 E9 DC B3 A0 E5 8D A3 63 91 A1 BB E9
>         BD_ADDR 0x13177C73D3 Link_Key 0xE9BBA19163A38DE5A0B3DCE919BA8013
> UP CMD: Link Key Request Reply Command Data =3D 16 D3 73 7C 17 13 00 13
> 80 BA 19 E9 DC B3 A0 E5 8D A3 63 91 A1 BB E9 20 00 00 00 00 00 19 00
>         BD_ADDR 0x13177C73D3 Link_Key
> 0xE9BBA19163A38DE5A0B3DCE919BA8013 Remaining Data:  [32, 0, 0, 0, 0,
> 0, 25, 0]
> UP EVT: Command Complete Event Data =3D 01 0B 04 00 D3 73 7C 17 13 00
>         Num_HCI_Command_Packets 0x1 Command_Opcode 0x0 Remaining Data:
>  [1, 11, 4, 0, 211, 115, 124, 23, 19, 0]
> UP EVT: Connection Complete Event Data =3D 00 07 00 D3 73 7C 17 13 00 01 =
01
>         Status 0x0 Connection_Handle 0x7 BD_ADDR 0x13177C73D3
> Link_Type 0x1 Encryption_Mode 0x1
> DOWN CMD: Write Link Policy Settings Command Data =3D 04 07 00 07 00
>         Remaining Data:  [7, 0, 7, 0]
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 01 00 02 01 04 00 01 00 61 00
>         L2CAP len=3D8 ch=3D1 Command=3DConnection request PSM 0x1 Src ID =
0x61
> UP CMD: Write Link Policy Settings Command Data =3D 04 07 00 07 00 20 00
> 00 00 00 00 07 00
>         Remaining Data:  [7, 0, 7, 0, 32, 0, 0, 0, 0, 0, 7, 0]
> UP EVT: Command Complete Event Data =3D 01 0D 08 00 07 00
>          Num_HCI_Command_Packets 0x1 Command_Opcode 0x0 Remaining Data:
>  [1, 13, 8, 0, 7, 0]
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0c 00 01 00 03 01 08 00 42 00 61 00=
 00 00 00 00
>         L2CAP len=3D12 ch=3D1 Command=3DConnection response Dest ID 0x42 =
Src
> ID 0x61 Result 0x0 Status 0x0
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 01 00 04 04 04 00 61 00 00 00
>         L2CAP len=3D8 ch=3D1 Command=3DConfigure request Dest ID 0x61 Fla=
gs 0x0
> DOWN CMD: Write Link Supervision Timeout Command Data =3D 04 07 00 00 7D
>         Remaining Data:  [7, 0, 0, 125]
> UP EVT: Command Complete Event Data =3D 01 37 0C 00 07 00
>         Num_HCI_Command_Packets 0x1 Command_Opcode 0x0 Remaining Data:
>  [1, 55, 12, 0, 7, 0]
> UP CMD: Write Link Supervision Timeout Command Data =3D 04 07 00 00 7D
> 20 00 00 00 00 00 07 00
>         Remaining Data:  [7, 0, 0, 125, 32, 0, 0, 0, 0, 0, 7, 0]
> DOWN CMD: Read Clock Offset Command Data =3D 02 07 00
>         Remaining Data:  [7, 0]
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 02 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x2
> UP EVT: Command Status Event Data =3D 00 01 1F 04
>         Status 0x0 Num_HCI_Command_Packets 0x1 Command_Opcode 0x41F
>  UP ACL: conn=3D7 flags=3D 2 Data =3D  0c 00 01 00
> UP CMD: Read Clock Offset Command Data =3D 02 07 00 20 00 00 00 00 00 05 =
00
>         Remaining Data:  [7, 0, 32, 0, 0, 0, 0, 0, 5, 0]
> UP ACL: conn=3D7 flags=3D 1 Data =3D  04 02 08 00 42 00 00 00 01 02 30 00
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0a 00 01 00 05 02 06 00 61 00 00 00=
 00 00
>         L2CAP len=3D10 ch=3D1 Command=3DConfigure response Reason 0x61 Da=
ta
> 0x0 Remaining Data:  [0, 0]
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0a 00 01 00 05 04 06 00 42 00 00 00=
 00 00
>         L2CAP len=3D10 ch=3D1 Command=3DConfigure response Reason 0x42 Da=
ta
> 0x0 Remaining Data:  [0, 0]
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP EVT: Read Clock Offset Complete Event Data =3D 00 07 00 FE 0B
>         Status 0x0 Connection_Handle 0x7 Clock_Offset 0xBFE
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0f 00 42 00
> UP ACL: conn=3D7 flags=3D 1 Data =3D  02 00 01 00 0a 35 05 1a 00 00 11 12=
 00 28 00
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0e 00 61 00 03 00 01 00 09 00 01 00=
 01
> 00 01 00 13 00
>         L2CAP len=3D2 ch=3D1 Command=3DInformation request Info Type 0x0
> Remaining Data:  [17, 18, 0, 40, 0, 14, 0, 97, 0, 3, 0, 1, 0, 9, 0, 1,
> 0, 1, 0, 1, 0, 19, 0]
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  11 00 42 00 04 00 02 00 0c 00 01 00=
 13
> 00 26 35 03 09 00 04 00
> UP ACL: conn=3D7 flags=3D 2 Data =3D  1b 00 61 00 05 00 02 00 16 00 13 35=
 11
> 09 00 04 35 0c 35 03 19 01 00 35 05 19 00 03 08 07 00
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 01 00 02 03 04 00 03 00 62 00
>         L2CAP len=3D8 ch=3D1 Command=3DConnection request PSM 0x3 Src ID =
0x62
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0c 00 01 00 03 03 08 00 43 00 62 00=
 00 00 00 00
>         L2CAP len=3D12 ch=3D1 Command=3DConnection response Dest ID 0x43 =
Src
> ID 0x62 Result 0x0 Status 0x0
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0c 00 01 00 04 05 08 00 62 00 00 00=
 01 02 ae 06
>         L2CAP len=3D12 ch=3D1 Command=3DConfigure request Dest ID 0x62 Fl=
ags
> 0x0 Remaining Data:  [1, 2, 174, 6]
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 02 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x2
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0c 00 01 00 04 04 08 00 43 00 00 00=
 01 02 84 00
>         L2CAP len=3D12 ch=3D1 Command=3DConfigure request Dest ID 0x43 Fl=
ags
> 0x0 Remaining Data:  [1, 2, 132, 0]
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0a 00 01 00 05 04 06 00 62 00 00 00=
 00 00
>         L2CAP len=3D10 ch=3D1 Command=3DConfigure response Reason 0x62 Da=
ta
> 0x0 Remaining Data:  [0, 0]
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0e 00 01 00 05 05 0a 00 43 00 00 00=
 00
> 00 01 02 84 00
>         L2CAP len=3D14 ch=3D1 Command=3DConfigure response Reason 0x43 Da=
ta
> 0x0 Remaining Data:  [0, 0, 1, 2, 132, 0]
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  04 00 43 00 03 3f 01 1c
> UP ACL: conn=3D7 flags=3D 2 Data =3D  04 00 62 00 03 73 01 d7
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0e 00 43 00 03 ef 15 83 11 0e f0 00=
 00
> 7e 00 00 00 70
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0e 00 62 00 01 ef 15 81 11 0e e0 00=
 00
> 7e 00 00 07 aa
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  04 00 43 00 3b 3f 01 06
> UP ACL: conn=3D7 flags=3D 2 Data =3D  04 00 62 00 3b 73 01 cd
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 62 00 01 ef 09 e3 05 3b 8d aa
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 02 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x2
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 43 00 03 ef 09 e1 05 3b 8d 70
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 43 00 03 ef 09 e3 05 3b 0d 70
> UP ACL: conn=3D7 flags=3D 2 Data =3D  05 00 43 00 3b ff 01 0f b9
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 62 00 01 ef 09 e1 05 3b 0d aa
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 01 00 06 05 04 00 42 00 61 00
>         L2CAP len=3D8 ch=3D1 Command=3DDisconnection request Src ID 0x42
> Flags 0x61 Result 0x0 Config 0x0
> UP ACL: conn=3D7 flags=3D 2 Data =3D  08 00 01 00 07 05 04 00 42 00 61 00
>         L2CAP len=3D8 ch=3D1 Command=3DDisconnection response Dest ID 0x42
> Src ID 0x61 Result 0x0 Status 0x0
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP ACL: conn=3D7 flags=3D 2 Data =3D  10 00 43 00 3b ef 19 41 54 2b 43 4b=
 50
> 44 3d 32 30 30 0d a5
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0a 00 62 00 39 ef 0d 0d 0a 4f 4b 0d=
 0a 7f
> DOWN CMD: Add SCO Connection Command Data =3D 04 07 00 E0 00
>         Connection_Handle 0x7 Packet_Type 0xE0
> UP CMD: Add SCO Connection Command Data =3D 04 07 00 E0 00 20 00 00 00 00=
 00 07 00
>         Connection_Handle 0x7 Packet_Type 0xE0 Remaining Data:  [32,
> 0, 0, 0, 0, 0, 7, 0]
> UP EVT: Command Status Event Data =3D 00 01 07 04
>         Status 0x0 Num_HCI_Command_Packets 0x1 Command_Opcode 0x407
> UP EVT: Number Of Completed Packets Event Data =3D 01 07 00 01 00
>         Number_of_Handles 0x1 Connection_Handle[0] 0x7
> HC_Num_Of_Completed_Packets[0] 0x1
> UP EVT: Connection Complete Event Data =3D 00 01 00 D3 73 7C 17 13 00 00 =
01
>         Status 0x0 Connection_Handle 0x1 BD_ADDR 0x13177C73D3
> Link_Type 0x0 Encryption_Mode 0x1
>  DOWN SCO:  00 00 00 00 00 00 00 00 40 9d 55 80 40 9d 55 80 ...
> DOWN SCO:  00 00 00 00 00 00 00 00 40 94 55 80 00 e1 3f 84 ...
> UP SCO:  08 00 08 00 20 00 20 00 18 00 20 00 18 00 30 00 ...
> DOWN SCO:  08 00 08 00 20 00 20 00 18 00 20 00 18 00 30 00 ...
> UP SCO:  00 00 00 30 00 50 00 38 00 38 00 38 00 38 00 30 ...
> DOWN SCO:  00 00 00 30 00 50 00 38 00 38 00 38 00 38 00 30 ...
> UP SCO:  00 18 00 30 00 48 00 40 00 20 00 40 00 40 00 20 ...
> DOWN SCO:  00 18 00 30 00 48 00 40 00 20 00 40 00 40 00 20 ...
> UP SCO:  00 10 00 30 00 40 00 38 00 18 00 30 00 30 00 28 ...
> DOWN SCO:  00 10 00 30 00 40 00 38 00 18 00 30 00 30 00 28 ...
> UP SCO:  00 18 00 38 00 48 00 48 00 38 00 38 00 30 00 20 ...
> DOWN SCO:  00 18 00 38 00 48 00 48 00 38 00 38 00 30 00 20 ...
> UP SCO:  00 18 00 40 00 60 00 30 00 10 00 48 00 38 00 20 ...
> DOWN SCO:  00 18 00 40 00 60 00 30 00 10 00 48 00 38 00 20 ...
> UP SCO:  00 10 00 30 00 38 00 40 00 38 00 30 00 30 00 20 ...
> DOWN SCO:  00 10 00 30 00 38 00 40 00 38 00 30 00 30 00 20 ...
> UP SCO:  00 10 00 28 00 30 00 40 00 38 00 30 00 30 00 28 ...
> DOWN SCO:  00 10 00 28 00 30 00 40 00 38 00 30 00 30 00 28 ...
> UP SCO:  00 10 00 38 00 48 00 38 00 28 00 38 00 30 00 20 ...
> DOWN SCO:  00 10 00 38 00 48 00 38 00 28 00 38 00 30 00 20 ...
> UP SCO:  00 18 00 40 00 50 00 48 00 38 00 38 00 38 00 28 ...
> DOWN SCO:  00 18 00 40 00 50 00 48 00 38 00 38 00 38 00 28 ...
> UP SCO:  00 10 00 40 00 50 00 48 00 28 00 30 00 30 00 28 ...
> DOWN SCO:  00 10 00 40 00 50 00 48 00 28 00 30 00 30 00 28 ...
> UP SCO:  00 10 00 40 00 58 00 38 00 20 00 38 00 30 00 30 ...
> DOWN SCO:  00 10 00 40 00 58 00 38 00 20 00 38 00 30 00 30 ...
> UP EVT: Connection Packet Type Changed Event Data =3D 00 01 00 80 00
>         Status 0x0 Connection_Handle 0x1 Packet_Type 0x80
> UP SCO:  38 00 30 00 40 00 20 00 28 00 40 00 30 00 40 00 ...
> DOWN SCO:  38 00 30 00 40 00 20 00 28 00 40 00 30 00 40 00 ...
> UP SCO:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...
> DOWN SCO:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...
> UP SCO:  00 30 00 30 00 30 00 28 00 38 00 30 00 30 00 28 ...
> DOWN SCO:  00 30 00 30 00 30 00 28 00 38 00 30 00 30 00 28 ...
> UP SCO:  00 48 00 30 00 18 00 28 00 38 00 20 00 28 00 18 ...
> DOWN SCO:  00 48 00 30 00 18 00 28 00 38 00 20 00 28 00 18 ...
> UP SCO:  00 38 00 40 00 30 00 30 00 30 00 20 00 30 00 28 ...
> DOWN SCO:  00 38 00 40 00 30 00 30 00 30 00 20 00 30 00 28 ...
> UP ACL: conn=3D7 flags=3D 2 Data =3D  0f 00 43 00 3b ff 15 01 41 54 2b 56=
 47
> 53 3d 31 31
>  UP ACL: conn=3D7 flags=3D 1 Data =3D  0d b9
> UP SCO:  00 30 00 40 00 28 00 20 00 40 00 30 00 20 00 18 ...
> DOWN SCO:  00 30 00 40 00 28 00 20 00 40 00 30 00 20 00 18 ...
>
>
>
>
> 2006/6/5, Brad Midgley < bmidgley@xmission.com>:
> > Eduardo
> >
> > > I have been investigating a bit around the code. I am not familiar
> > > with bluez and my knowledge of BT is limited. However, I found that
> > > I'm getting -ERESTARTSYS (-512) errors in snd_card_bt_sco_thread
> > > coming from bt_sock_recvmsg. It looks like quite an exotic error code
> > > to me. Further I have difficulty tracking where it comes from. Is this
> > > code normal?
> >
> > I haven't dug into it like you have, but it's not unexpected to see the
> > error happen there. We have no sco data arriving on hci, so recvmsg must
> > be interrupted by a signal instead.
> >
> > I suspect broadcom has an equivalent to csr's nonvolatile setting for
> > hci vs. pcm audio delivery. Apparently no one has good enough docs to
> > know for sure. It would help if we knew that dongle had been
> > successfully used for sco under windows.
> >
> > Brad
> >
> >
> >
> > _______________________________________________
>  > Bluez-devel mailing list
> > Bluez-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/bluez-devel
> >
>


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