From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <46447D58.2090300@telnet-ri.es> Date: Fri, 11 May 2007 16:27:36 +0200 From: David Beamonte MIME-Version: 1.0 To: BlueZ development References: <4642CD6D.4020904@telnet-ri.es> <1178789693.25565.73.camel@aeonflux.holtmann.net> <4642E9F3.9000501@telnet-ri.es> In-Reply-To: <4642E9F3.9000501@telnet-ri.es> Subject: Re: [Bluez-devel] LMX9830 driver Reply-To: BlueZ development List-Id: BlueZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2132098647==" Sender: bluez-devel-bounces@lists.sourceforge.net Errors-To: bluez-devel-bounces@lists.sourceforge.net This is a multi-part message in MIME format. --===============2132098647== Content-Type: multipart/alternative; boundary="------------010400000701050600000804" This is a multi-part message in MIME format. --------------010400000701050600000804 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Hi, We have realized that LMX9830 doesn't have HCI controller. The communicating with the chip is via an specific set of commands, and so, the HCI drivers and hciattach are not suitable for us. We guess that we must develop our own driver that substitutes HCI driver, but we are not sure where we should start working. I would like to know if there's any effort done in this way in the BlueZ development. We are open to any suggestion or hint that can gives us some light to this matter. Regards, David David Beamonte wrote: > Thanks Marcel, > > What I know about the device is that its command interface (UART) uses > a frame protocol, with start and end delimiters of frames, frame ids > and so on. I understand from your words that this is the standard way > to communicate and that all devices have the same set of commands. > > Anyway, I will check what you mention about hciattach. Is there any > kind of documentation on how to do this, or I must dig into the code? > > Thanks again, > > David > > > Marcel Holtmann wrote: > >>Hi David, >> >> >> >>>We have included a National LMX9830 module in a new design. The >>>communication between the chip and the microprocessor is via UART and we >>>have also connected the audio channels of the chip to the processor, so >>>that we can use the SCO link. >>> >>>It's the first time we use bluetooth modules in our designs, and so, we >>>are open to any kind of suggestion on how to work on this. >>> >>>At first sight, it seems that we should use the UART(H4) driver, but we >>>are not really sure if the commands to communicate to the chip are >>>standard or not. I think that we will probably need to develop some kind >>>of a driver. >>> >>> >> >>unless you use some vendor specific deep-sleep things, the H4 driver >>should be fine. However you might need to adapt hciattach for the module >>initialization. >> >>Regards >> >>Marcel >> >> >> >>------------------------------------------------------------------------- >>This SF.net email is sponsored by DB2 Express >>Download DB2 Express C - the FREE version of DB2 express and take >>control of your XML. No limits. Just data. Click to get it now. >>http://sourceforge.net/powerbar/db2/ >>_______________________________________________ >>Bluez-devel mailing list >>Bluez-devel@lists.sourceforge.net >>https://lists.sourceforge.net/lists/listinfo/bluez-devel >> >> >> >------------------------------------------------------------------------ > >------------------------------------------------------------------------- >This SF.net email is sponsored by DB2 Express >Download DB2 Express C - the FREE version of DB2 express and take >control of your XML. No limits. Just data. Click to get it now. >http://sourceforge.net/powerbar/db2/ > >------------------------------------------------------------------------ > >_______________________________________________ >Bluez-devel mailing list >Bluez-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/bluez-devel > > --------------010400000701050600000804 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Hi,

We have realized that LMX9830 doesn't have HCI controller. The communicating with the chip is via an specific set of commands, and so, the HCI drivers and hciattach are not suitable for us.

We guess that we must develop our own driver that substitutes HCI driver, but we are not sure where we should start working. I would like to know if there's any effort done in this way in the BlueZ development.

We are open to any suggestion or hint that can gives us some light to this matter.

Regards,

David



David Beamonte wrote:
Thanks Marcel,

What I know about the device is that its command interface (UART) uses a frame protocol, with start and end delimiters of frames, frame ids and so on. I understand from your words that this is the standard way to communicate and that all devices have the same set of commands.

Anyway, I will check what you mention about hciattach. Is there any kind of documentation on how to do this, or I must dig into the code?

Thanks again,

David


Marcel Holtmann wrote:
Hi David,

  
We have included a National LMX9830 module in a new design. The 
communication between the chip and the microprocessor is via UART and we 
have also connected the audio channels of the chip to the processor, so 
that we can use the SCO link.

It's the first time we use bluetooth modules in our designs, and so, we 
are open to any kind of suggestion on how to work on this.

At first sight, it seems that we should use the UART(H4) driver, but we 
are not really sure if the commands to communicate to the chip are 
standard or not. I think that we will probably need to develop some kind 
of a driver.
    

unless you use some vendor specific deep-sleep things, the H4 driver
should be fine. However you might need to adapt hciattach for the module
initialization.

Regards

Marcel



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