linux-kernel - Re: Linux 2.6.39

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Date:	Wed, 25 May 2011 21:11:19 -0400
From:	Corey Boyle <corey@...sanian.com>
To:	wyrles@...am.com, Ville Tervo <ville.tervo@...ia.com>,
	"Cufi, Carles" <carles.cufi@...dicsemi.no>
Cc:	Ed Tomlinson <edt@....ca>,
	Bluettooth Linux <linux-bluetooth@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: Linux 2.6.39

On Wed, May 25, 2011 at 12:31 PM, Tom Allebrandi <wyrles@...am.com> wrote:
> -----Original Message-----
> From: linux-bluetooth-owner@...r.kernel.org
> [mailto:linux-bluetooth-owner@...r.kernel.org] On Behalf Of Cufi, Carles
> Sent: Wednesday, May 25, 2011 7:15 AM
> To: corey@...sanian.com
> Cc: Ed Tomlinson; Ville Tervo; Bluettooth Linux;
> linux-kernel@...r.kernel.org
> Subject: RE: Linux 2.6.39
>
> (Snipping...)
> On Wed, May 25, 2011 at 8:46 AM, Cufi, Carles <carles.cufi@...dicsemi.no>
> wrote:
>> On Wednesday 25 May 2011 07:36:14 Ville Tervo wrote:
>>> On Wed, May 25, 2011 at 07:11:17AM -0400, ext Ed Tomlinson wrote:
>>> > On Wednesday 25 May 2011 06:54:54 Corey Boyle wrote:
>>> > > > On Mon, May 23, 2011 at 06:08:36PM -0400, ext Ed Tomlinson wrote:
>>> > > > > On Saturday 21 May 2011 16:31:00 Ed Tomlinson wrote:
>>> > > > > > On Saturday 21 May 2011 13:56:20 Milan Oravec wrote:
> ...
>>> > Read Local Version Information (0x04|0x0001) plen 0
>>> > > HCI Event: Command Complete (0x0e) plen 12
>>> >     Read Local Version Information (0x04|0x0001) ncmd 1
>>> >     status 0x00
>>> >     HCI Version: 1.1 (0x1) HCI Revision: 0x20d
> *************************
>>> >     LMP Version: 1.1 (0x1) LMP Subversion: 0x20d
> *************************
>>> >     Manufacturer: Cambridge Silicon Radio (10) < HCI Command: Set
>>> > Event Mask (0x03|0x0001) plen 8
>>> >     Mask: 0xfffffbff00000000
> *************************
>>> > > HCI Event: Command Complete (0x0e) plen 4
>>> >     Set Event Mask (0x03|0x0001) ncmd 1
>>> >     status 0x12
>>> >     Error: Invalid HCI Command Parameters
>>
>>Set Event Mask has been in the Bluetooth Spec since day 1, so it must be
> the bitmask, which has been extended with each new spec release to cover
> newly >added events. Looking at the latest spec, and judging by the year
> your chipset was released in (it probably is a 1.1 compliant chipset) I
> believe that >0x000000008FFFFFFF is the highest event mask it would support
> (up until and including Page Scan Repetition Mode Change Event), but since I
> don't have the >old 1.1 spec around I may be one or two bits off.
>
> The device appears to have identified itself as CSR firmware using Bluetooth
> version 1.1.
>
> I do happen to have the 1.1 spec lying around :-), for Set_Event_Mask it
> says
>
> 0x0000000100000000
> To                                          Reserved for future use
> 0x8000000000000000
>
> 0x00000000FFFFFFFF      Default (All events enabled)
>

I am beginning to think that my adapter simply does not support this
command.  I have tried with all the suggested bitmasks, all zeros, all
ones, all combinations where a single bit is set, etc.  I'm not sure
where to go from here other than add a flag which incidates that
certain devices don't support this command so it can be skipped.
Again, the only way I have gotten it to work is by not sending the
command at all.  Thoughts?
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